Adjustable and collapsible shingling-stool.



J. G. LEWIS. ADJUSTABLE AND GO LLAPSIBLE SHINGLING STOOL.

APPLICATION FILED MAR.1 1, 1910.

1,026,097. Patented May 14, 1912.

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1,026,097. Patented May 14, 1912.

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JACKSON GARFIELD LEWIS, OF NEW WINDSOR, COLOR-ADO.

ADJUSTABLE AND COLLAPSIBLE SHINGLING-STOOL.

roaches.

Specification of Letters Patent.

Application filed March 11, 1910.

Patented May 14, 1912.

Serial No. 548,551.

To all whom it may concern Be it known that Ldaoxson GARFIELD Lnwrs, acitizen of the United States, residing at New Windsor, county of Weld,and State of Colorado, have invented certain new and useful Improvementsin Adjustable and Collapsible Shingling-Stools; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the letters and figures of reference marked thereon, which form apart of this specification.

My invention relates to a stool adapted for use on slanting roofs ofbuildings during the operation of shingling.

The construction, generally speaking, consists of two hinged memberswhich are adjustable by means of a connecting link, one end of which isslidably connected with one of the members, whereby the angle of the twomembers may be regulated at will, depending upon the pitch of the roof,in order that one of the members, namely, that forming the top of thestool, may be kept in the horizontal or approximately horizontalposition.

The stool is also collapsible, since the aforesaid link connecting thetwo members is jointed, to permit the members to fold together when notin use. The edge of each member which engages the roof is formed sharp,the upper or top member having its roof-engaging edge turned downwardlyfor the purpose. By virtue of this feature, the stool indents the roofand is self retaining thereon, since the weight of the user forces thesharpened portions of the stool into the roof.

Having briefly outlined my improved construction, I will proceed todescribe the same in detail, reference being made to the accompanyingdrawing, in which is illustrated an embodiment thereof.

In this drawing: Figure 1 is an edge view of a roof showing my improvedshingling stool in position thereon, the stool being shown in sideelevation. Fig. 2 is a detail view of the stool, the parts being shownon a larger scale and the slant of the roof being indicated by a dottedline. Fig. 3 is a central section of the stool shown in the collapsedposition. This section is taken on the line 33, Fig. 6, the'scale beingapproximately the same as in Fig. 2. Fig. 4 is a fragmentary view of thelink-joint looking in the direction of arrow 4, Fig. 2, the parts beingshown on a larger scale. Fig. 5 is a sect-ion taken on the line 55, Fig.4. Fig. 6 is a top plan View of the structure shown in the extendedposition or when both members lie in the same plane.

The same reference characters indicate the same parts in all the views.

Let the numerals 5 and 6 designate the two members of the stool whichare hinged together as shown at 7 The member 5 consists of two parallelbars 8 connected together by slats 9, while the member 6 includes twobars 10 connected by cross pieces 11. The two bars 10 of the one memberare hinged to the bars 8 of the other member by pins 12 secured in placeby cotters 13. The free extremities of the bars 6 are toothed andsharpened as shown at 14; while the free extremities of the bars 8 arebent at right angles to the bodies of the bars, and the dependingportions 15 are sharpened as shown at 16 to indent the shingles 17 ofthe roof 18. In the drawing 19 designates a rafter and 20 the boardsforming the sheeting to which the shingles are applied. The two membersof the stool are connected by a link 21, composed of two members 22 and23, p-ivotally connected by a rivet 24. The link member 22 overlaps themember 23 beyond the rivet 24: as shown at 25 and carries a pin 26adapted to enter a recess 27 formed in the upper edge of the link member23, whereby the two link members are locked in the alined position andprevented from breaking downwardly. Mounted upon the link member 22 is aleaf-spring 28 secured to the link at one extremity as shown at 29. Thisspring is bow-shaped at one extremity as shown at 30 and has anextremity 31 adapted to enter registering openings 32 and 33, formed inthe respective link members. The member 23 is beveled above the opening33 whereby the extremity 31 of the locking spring moves automaticallyinto the locking position when the two link members are thrown intoalinement.

One extremity of the jointed link 21 is through a slot 39 formed in agraduated plate 40 whose extremities are secured to the cross bars 12 ofthe member 6 as shown at 41. The graduated edge of this plate hasnumbers formed thereon to indicate the pitch of the roof and theconsequent angle of the stool members in order to harmonize with suchpitch. The shank 38 of the lug is provided with a shoulder 42 whichengages the slotted plate on one side and a washer 43 which engages iton the opposite side, the last named Washer being provided with apointer tooth 44 and held in place by a wingnut 45 which serves to lockthe two members of the stool in the adjusted position.

When my improved device is in use, it is set at the pitch or slant ofthe roof, (see Figs. 1 and 2). This is done by loosening the wing-nut 45and sliding the lug 37 up or down upon the slotted plate until theproper adjustment is obtained. The device is then ready for use and thesharpened teeth of its roof-engaging edges indent the shingles of theroof by virtue of the pressure of the weight of the user. When thedevice is not in use, it may be folded to the position shown in Fig. 3by pulling outwardly on the bow-shaped extremity 30 of the spring 28until the extremity 31 of the locking spring is disengaged from theorifice 33 of the link 23. The link members 22 and 23, together with themembers 5 and 6 of the stool, are allowed to fold to the position shownin Fig. 3. However, in order to accomplish the folding operation thewingnut should be loosened to allow the lug 37 to slide downwardly tothe bottom of the slot 39.

When the device is in use it is placed in any convenient position uponthe roof and the user sits thereon, the upper member 5 of the stoolforming a substantial horizontal support for his body. This top portionof the stool may be, and usually is in actual practice, inclinedslightly downwardly from the enlarged oint 7, thus making the usersposition more secure.

It will be understood that a portion of the roof along the lower edgethereof is first shingled from the scaffolding, not shown, erectedaround the building. The stool is then placed upon this shingled portionand is afterward used continuously until the shingling is completed,being easily moved from place to place by the user.

Having thus described my invention, what I claim is:

A shingling stool composed of two members hinged together, one of whichis adapted to form a shelf, while the other is adapted to form a propfor the shelf, the prop member being provided with an elongatedgraduated slot, a link composed of two members pivotally connected atone extremity with the shelf member, a leaf spring, one extremity ofwhich is secured to the link, its opposite extremity being bow-shapedand adapted to .enter a registering opening formed in the respectivelink members, a lug pivotally secured at the opposite extremity of thelink, the said lug being slidably mounted in the graduated slot of theprop member, and means for holding the said lug against movement in theslot, in the desired position of adjustment, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

JACKSON GARFIELD LEWIS.

Witnesses:

A. J. OBRIEN, ELIZABETH. BOWEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

